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  <title>Enable the profiler.</title>
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      <li style="float: left;"><a href="luasandbox.disableprofiler.html">« LuaSandbox::disableProfiler</a></li>
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    <li>Enable the profiler.</li>
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  <div id="layout-content"><div id="luasandbox.enableprofiler" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">LuaSandbox::enableProfiler</h1>
  <p class="verinfo">(PECL luasandbox &gt;= 1.1.0)</p><p class="refpurpose"><span class="refname">LuaSandbox::enableProfiler</span> &mdash; <span class="dc-title">Enable the profiler.</span></p>

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 <div class="refsect1 description" id="refsect1-luasandbox.enableprofiler-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>LuaSandbox::enableProfiler</strong></span>(<span class="methodparam"><span class="type">float</span> <code class="parameter">$period</code><span class="initializer"> = 0.02</span></span>): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   Enables the profiler. Profiling will begin when Lua code is entered.
  </p>
  <p class="para">
   The profiler periodically samples the Lua environment to record the
   running function. Testing indicates that at least on Linux, setting a
   period less than 1ms will lead to a high overrun count but no
   performance problems.
  </p>

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 <div class="refsect1 parameters" id="refsect1-luasandbox.enableprofiler-parameters">
  <h3 class="title">参数</h3>
  <dl>
   
    <dt>
<code class="parameter">period</code></dt>

    <dd>

     <p class="para">
      Sampling period in seconds.
     </p>
    </dd>

   
  </dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-luasandbox.enableprofiler-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns a boolean indicating whether the profiler is enabled.
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-luasandbox.enableprofiler-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="luasandbox.disableprofiler.html" class="methodname" rel="rdfs-seeAlso">LuaSandbox::disableProfiler()</a> - Disable the profiler</span></li>
    <li class="member"><span class="methodname"><a href="luasandbox.getprofilerfunctionreport.html" class="methodname" rel="rdfs-seeAlso">LuaSandbox::getProfilerFunctionReport()</a> - Fetch profiler data</span></li>
   </ul>
  </p>
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